LVM and MD disagree about PV size

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Kernel: 2.4.20, stock lvm, debian system with xfs patches.

MD shows the right size of around 80G, LVM thinks the PV is much larger ().

1) How can I fix this without destroying the data?
2) How can I avoid this in the future.

I still have a spare 45G drive in the system, so I can add it as a PV, pvmove the data, destroy md6, recreate it, pvmove the data back and see that all is ok.

In fact, I think I'll just go ahead and do so...

mdadm --detail /dev/md/6:

/dev/md/6:

        Version : 00.90.00
  Creation Time : Sun Dec 28 17:33:02 2003
     Raid Level : raid1
     Array Size : 80003584 (76.30 GiB 81.92 GB)
    Device Size : 80003584 (76.30 GiB 81.92 GB)

Raid Devices : 2
Total Devices : 2
Preferred Minor : 6
Persistence : Superblock is persistent

Update Time : Sun Dec 28 17:33:02 2003
State : dirty, no-errors
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0

Number Major Minor RaidDevice State
0 33 3 0 active sync /dev/ide/host2/bus0/target0/lun0/part3
1 57 3 1 active sync /dev/ide/host4/bus1/target0/lun0/part3
UUID : 8c24286e:6f758b5a:8d6c9575:d22731fa
Events : 0.1

pvdisplay /dev/md/6:

- --- Physical volume ---

PV Name               /dev/md/6
VG Name               shaktivg
PV Size               148.80 GB [312062464 secs] / NOT usable 4.31 MB [LVM: 272 KB]
PV#                   3
PV Status             available
Allocatable           yes
Cur LV                10
PE Size (KByte)       4096
Total PE              38092
Free PE               28645
Allocated PE          9447
PV UUID               jeVyqI-g2RE-xHF6-Nfo5-rT40-rGYK-65iJZp

- --
- -rupa

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